Water Flossers
★★★★★ 4.6/5 · 92,340 owner reviews
After six months of daily use, the Waterpik Aquarius WP-660 is the water flosser I would recommend to anyone willing to put up with a countertop appliance. The 90-second 22-ounce tank covers an entire flossing session without refilling, the ten pressure settings actually feel different from one another, and the seven included tips cover orthodontic, periodontal, and tongue-cleaning needs. The catch is that the unit is loud and bulky. If you can live with that, this is the gold standard of water flossing under $100.
+Pros: 22-ounce reservoir gives 90 seconds of continuous flossing per fill · Ten pressure settings span from gentle (10 PSI) to firm (100 PSI) · Seven specialty tips included (Classic, Plaque Seeker, Pik Pocket, Orthodontic, Toothbrush, Tongue Cleaner)
−Cons: Loud, around 75 dB at full pressure (similar to a vacuum cleaner) · Countertop unit is large, takes up real estate near the sink